to do list.cpp

#include <iostream>
#include <vector>
#include <fstream>
using namespace std;

vector<string> pullFile(string fileName)
{
    vector<string> totalList;
    fstream ioFile;
    ioFile.open(fileName.c_str(), fstream::in);
    string bullet;
    while (!ioFile.eof())
	{
        getline(ioFile, bullet);
        if(!bullet.empty())
		{
            totalList.push_back(bullet);
        }
    }
    ioFile.close();
    return totalList;
}
void pushFile(vector<string> totalList, string fileName)
{
    fstream ioFile;
    ioFile.open(fileName.c_str(), fstream::out);
    for(int c = 0; c < totalList.size(); c++)
	{
        if(!totalList[c].empty())
		{
            ioFile<<totalList[c]<<"\n";
        }
    }
    ioFile.close();
}
bool ifExists(string fileName)
{
    ifstream infile(fileName.c_str());
    return infile.good();
}
void printList(vector<string> totalList, string fileName)
{
    cout<<"List: "<<fileName<<"...\n";
    for(int c = 0; c < totalList.size(); c++)
	    {
            cout<<(c+1)<<". "<<totalList[c]<<"\n";
        }
    cout<<"\n\n\n\n\n";
}

int main()
{
    string trash;
    string fileName;
    vector<string> totalList;
    vector<string> names;
    if (ifExists("lists.txt"))
	{
        names = pullFile("lists.txt");
    }
    cout<<"File List: \n\n";
    if(names.size() == 0)
	{
        cout<<"No lists found.\n";
    }
    else
	{
        for(int c = 0; c < names.size(); c++)
		{
            cout<<(c+1)<<". "<<names[c]<<"\n";
        }
    }
    while (true)
	{
        cout<<"\nEnter the number of the list you would like to load or Enter file name for a new list.\n >", cin>>fileName, cout<<"\n";
        if(isdigit(fileName[0]))
		{
            int x = fileName[0] - '0';
            if(x > 0 && x < names.size()){
                fileName = names[x-1];
                flag = false;
            }
            else
			{
                cout<<"Not a list number.\n";
            }
        }
        else
		{
            fileName = fileName + ".txt";
            names.push_back(fileName);
            flag = false;
        }
    }
    pushFile(names, "lists.txt");

    if (ifExists(fileName))
	{
        totalList = pullFile(fileName);
    }
    while (true)
	{
        printList(totalList, fileName);
        int choice = 0;
        cout<<"What would you like to do?\n";
        cout<<"1. Add Data.\n";
        cout<<"2. Remove Data.\n";
        cout<<"3. Exit.\n";
        cout<<">", cin>>choice, cout<<"\n";
        while(cin.fail())
		{
            cin.ignore();
            cin.clear();
            rewind(stdin);
            cout<<">", cin>>choice, cout<<"\n";
        }
        if(choice == 1)
		{
            string newItem;
            cout<<"Enter Insert new Data: ", cin>>newItem, cout<<"\n";
            if(cin.fail())
			{
                cin.ignore();
                cin.clear();
                rewind(stdin);
                cout<<"Enter Insert new Data: ", cin>>newItem, cout<<"\n";
            }
            totalList.push_back(newItem);
        }
        else if(choice == 2)
		{
            int itemNumber = 0;
            cout<<"Enter Data number to Remove: ", cin>>itemNumber, cout<<"\n";
            while(cin.fail() || itemNumber < 1 || itemNumber > totalList.size())
			{
                cin.ignore();
                cin.clear();
                rewind(stdin);
                cout<<"Enter Data number to Remove: ", cin>>itemNumber, cout<<"\n";
            }
            totalList.erase(totalList.begin() + (itemNumber-1));
        }
        else if(choice == 3)
		{
            cont = false;
            pushFile(totalList, fileName);
            cout<<"Exiting.\n";
        }
        else
		{
            cout<<"Invalid Input!\n";
            cin.clear();
            cin.ignore();
        }
    }
}